1. Hans-Günter Schlegel wird 60 Jahre alt

   • Seine Schüler
   • Freunde

   Announcement Pages: 279 - 279

2. Variability of pressure adaptation in deep sea bacteria

   • Holger W. Jannasch
   • Carl O. Wirsen

   Original Papers Pages: 281 - 288

3. The sulfide affinity of phototrophic bacteria in relation to the location of elemental sulfur

   • Hans Van Gemerden

   Original Papers Pages: 289 - 294

4. Utilization of sulfide and elemental sulfur by Ectothiorhodospira halochloris

   • Johann Then
   • Hans G. Trüper

   Original Papers Pages: 295 - 298

5. Regulation of the synthesis of hydrogenase (formate hydrogen-lyase linked) of E. coli

   • F. Zinoni
   • A. Beier
   • A. Böck

   Original Papers Pages: 299 - 304

6. Involvement of megaplasmids in heterotrophic derepression of the carbon-dioxide assimilating enzyme system in Alcaligenes spp.

   • Botho Bowien
   • Bärbel Friedrich
   • Cornelius G. Friedrich

   Original Papers Pages: 305 - 310

7. Genetic manipulation of the restricted facultative methylotroph Hyphomicrobium X by the R-plasmid-mediated introduction of the Escherichia coli pdh genes

   • L. Dijkhuizen
   • W. Harder
   • G. Venema

   Original Papers Pages: 311 - 318

8. Construction of a gene bank of Rhodopseudomonas capsulata using a broad host range DNA cloning system

   • Gabriele Klug
   • Gerhart Drews

   Original Papers Pages: 319 - 325

9. Ammonia and light effect on nitrogenase activity in nitrogen-limited continuous cultures of Rhodopseudomonas capsulata. Role of glutamine synthetase

   • Yves Jouanneau
   • Stephan Lebecque
   • Paulette M. Vignais

   Original Papers Pages: 326 - 331

10. Functional relationship between protein-bound and free factor F430 in Methanobacterium

    • Dorothe Ankel-Fuchs
    • Rolf Jaenchen
    • Rudolf K. Thauer

    Original Papers Pages: 332 - 337

11. The phosphate potential, adenylate energy charge and proton motive force in growing cells of Streptococcus cremoris

    • R. Otto
    • B. Klont
    • W. N. Konings

    Original Papers Pages: 338 - 343

12. Reconsideration of the efficiency of energy transduction in Paracoccus denitrificans during growth under a variety of culture conditions

    • F. C. Boogerd
    • H. W. van Verseveld
    • A. H. Stouthamer

    Original Papers Pages: 344 - 350

13. Aerobic denitrification: a controversy revived

    • Lesley A. Robertson
    • J. Gijs Kuenen

    Original Papers Pages: 351 - 354

14. Urease from Arthrobacter oxydans, a nickel-containing enzyme

    • Jürgen Schneider
    • Heinrich Kaltwasser

    Original Papers Pages: 355 - 360

15. Hydrogenase from Acetobacterium woodii

    • Steve W. Ragsdale
    • Lars G. Ljungdahl

    Original Papers Pages: 361 - 365

16. Propanediol-1,2-dehydratase and metabolism of glycerol of Lactobacillus brevis

    • H. Schütz
    • F. Radler

    Original Papers Pages: 366 - 370

17. In vitro synthesis of peptidoglycan by spheroplasts of Proteus mirabilis grown in the presence of penicillin

    • Hans Herbert Martin

    Original Papers Pages: 371 - 375

18. Effect of oxygen on the metabolism of Zymomonas mobilis

    • Stephanie Bringer
    • Robert K. Finn
    • Hermann Sahm

    Original Papers Pages: 376 - 381

19. Towards a phylogeny of phototrophic purple sulfur bacteria—16S rRNA oligonucleotide cataloguing of 11 species of Chromatiaceae

    • Valerie J. Fowler
    • Norbert Pfennig
    • Erko Stackebrandt

    Original Papers Pages: 382 - 387

20. Sporomusa, a new genus of gram-negative anaerobic bacteria including Sporomusa sphaeroides spec. nov. and Sporomusa ovata spec. nov.

    • Bernhard Möller
    • Rolf Oßmer
    • Hans Hippe

    Original Papers Pages: 388 - 396

21. Bacillus tusciae, a new species of thermoacidophilic, facultatively chemolithoautotrophic hydrogen oxidizing sporeformer from a geothermal area

    • Fabienne Bonjour
    • Michel Aragno

    Original Papers Pages: 397 - 401

22. Thermophilic Bacilli growing with carbon monoxide

    • Bernd Krüger
    • Ortwin Meyer

    Original Papers Pages: 402 - 408

23. Fermentation of tartrate enantiomers by anaerobic bacteria, and description of two new species of strict anaerobes, Ruminococcus pasteurii and Ilyobacter tartaricus

    • Bernhard Schink

    Original Papers Pages: 409 - 414

24. A marine, psychrophilic bacterium of the bacteroidaceae type

    • Nils Dyrset
    • Greta Bentzen
    • Helge Larsen

    Original Papers Pages: 415 - 420

25. Phormidium J-1 bioflocculant: production and activity

    • Ali Fattom
    • Moshe Shilo

    Original Papers Pages: 421 - 426